Observations of the 18-cm OH lines in Herbig-Haro objects and reflection nebulae

Details Observations of the 18-cm OH lines in Herbig-Haro objects and reflection nebulae Observations of the 18-cm OH lines in Herbig-Haro objects and reflection nebulae

Dec 1980

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1980azh....57.1204p&link_type=abstract

(Astronomicheskii Zhurnal, vol. 57, Nov.-Dec. 1980, p. 1204-1214.) Soviet Astronomy, vol. 24, Nov.-Dec. 1980, p. 695-700. Trans

Astronomy and Astrophysics

Astronomy

1

Herbig-Haro Objects, Hydroxyl Emission, Interstellar Matter, Nebulae, Radio Telescopes, Stellar Evolution, Ground State, Line Spectra, Spectrum Analysis, Stellar Spectra

Scientific paper

In 1978, the large radio telescope at Nancay was used to observe various Herbig-Haro objects and R-associations (containing reflection nebulae) in the main (1665 MHz and 1667 MHz) lines of the ground state of the OH molecule. OH emission was detected near 36 of the 63 objects examined. In most cases the line profiles have a simple single-peaked structure with a line width of 1-3 km/sec. The OH emission probably originates in interstellar dust clouds surrounding the HH objects and R-associations. The results demonstrate that few strong maser radio sources occur in the immediate vicinity of HH objects.

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